As planned, the #DNS root name server H.root-servers.net, operated by the US Army, changed its IP addresses today. The new addresses are 198.97.190.53 and 2001:500:1::53.
►http://h.root-servers.org/renumber.html
The change is visible in the root zone file. Thanks to a process known as “priming” (and not officially documented), the DNS resolvers, even without any change of their list of root name servers, often see and use the new address.
But because of caching, not all sites have the new address yet. If I query RIPE Atlas probes, I see many of them still use the old address 128.63.2.53 :
% python resolve-name.py -r 500 h.root-servers.net
Measurement #3050786 for h.root-servers.net/A uses 500 probes
[198.97.190.53] : 308 occurrences
[128.63.2.53] : 181 occurrences
Test done at 2015-12-01T07:53:47Z
% python resolve-name.py -r 500 -t AAAA h.root-servers.net
Measurement #3050870 for h.root-servers.net/AAAA uses 500 probes
[2001:500:1::803f:235] : 154 occurrences
[2001:500:1::53] : 336 occurrences
Test done at 2015-12-01T07:58:26Z